负载型TiO_2光催化剂的研究进展

Development of Supported TiO_2 Photocatalysts

TiO2光催化技术是一种节能、高效的绿色环保新技术。TiO2光催化剂在废水处理、空气净化和材料自洁等领域具有诱人的应用前景。将其负载于一定的载体上,并设计出高效的光反应器是其实用化的关键之一。本文综合评述了负载型TiO2光催化剂发展状况,着重介绍了负载型TiO2光催化剂载体类型与作用、固定化方法以及负载对光催化活性的影响,指出目前研究中存在的问题,并展望未来的研究方向。

TiO_2 photocatalysis is an energy-saved and high efficiency green environmental technology.TiO_2 photocatalyst has an attractive application perspective in wastewater treatment,air purification and material (self-)cleaning. It is very important to immobilize the TiO_2 photocatalyst onto substrates for designing high efficient photocatalytic reactors. In this paper the recent progress of TiO_2 photocatalyst is reviewed. Furthermore, types and effects of the supports, immobilization methods, influence of supports on photocatalytic activities are emphasized. The problems and development trends of TiO_2 photocatalysts have also been pointed out briefly.